Switch to importing client from main js-sdk export (#11370)

test/components/views/context_menus/WidgetContextMenu-test.tsx

@@ -18,7 +18,7 @@ limitations under the License.
 import React, { ComponentProps } from "react";
 import { screen, render } from "@testing-library/react";
 import userEvent from "@testing-library/user-event";
-import { MatrixClient } from "matrix-js-sdk/src/client";
+import { MatrixClient } from "matrix-js-sdk/src/matrix";
 import { MatrixWidgetType } from "matrix-widget-api";
 import {
     ApprovalOpts,